API
Which of the following standards governed on pump installed in oil refinery or chemical plant?
209
How many million metric tons is the proven coal reserve of the Philippines
transom
A panel used to close a hoisting enclosure opening above a hoisting entrance.
proximate analyses
Analysis of coal which includes moisture, volatile matter, fixed carbon and ash as its components.
90 db
What is the maximum sound level for employee working for 8 hrs. per day?
rank
Coals are classified by __ according to ASTM D-388.
Murdock
Who made the first successful experiment in the production of gas from coal?
1856
When was the violet dye from coal tar invented?
40-85%
What is the fixed carbon content of bituminous coal in Philippines
12 m3/person
What is the space requirement of person working in an industrial building?
jib
A small and light strut mounted on top of standard crane boom
grindability
What coal property does a handgrove machine method (ASTM D409) measures?
temperature pitch
A condition where the hot and cold streams reach approximately the same temperature in a heat exchanger and the heat transfer stops.
X-type
A type of shell and tube heat exchanger especially applicable for vacuum condenser and can be equipped with integral finned tubes to counteract the effort of low shell side velocity on heat transfer.
counter flow dryer
Type of dryer where grains and drying air move in opposite direction in the drying chamber.
13.5%
What is the maximum moisture content of rice for it to be safely stored for long period?
hardness
The sum of calcium and magnesium ions in water
turbidity
lack of clearness or brilliance in water.
inhibitor
A chemical substance that reduces the rate of corrosion, scale formation, fouling or slime production.
-20C
What is the maximum storage temperature for long term storage of processed foods?
Schwartzberg
Who made significant contribution on the enthalpy of food items?
regenerator
A transient batch-type exchanger in which packed bed is alternately switched from the hot stream to cold stream
Activated carbon
A dry and regenrable flue gas desulfurization.
reverse osmosis
A wastewater treatment that utilizes membranes that can exclude a large fractions of almost all solutes.
air stripping
A wastewater treatment that removed highly volatile materials
recuperator
Conventional heat exchanger in which heat is removed or recouped by the cold fluid stream from the hot fluid stream.
fouling
The effect of deposits which gradually build up on heat transfer surfaces of heat exchangers that increase thermal resistance
NTU
A measure of heat transfer size of the heat exchanger
effectiveness
It represents the thermodynamic performance of heat exchanger
effectiveness
The ratio of the actual rate of heat transfer in a given heat exchanger to the maximum possible rate of heat exchange.
768 x 1024 mm
The following are standard sheet sizes for mechanical plans and drawings except one.
RA 8495
The new mechanical engineering law
millimeter
In general, what should be the dimensions of mechanical drawings no matter how small or big it is?
all of the above
A reciprocating machine part within a cylinder
doctor feed
A device employed to keep feed and stock rolls clean and assist in feeding stock into the inrunning or feed rolls on the machine.
0.05D
What is the maximum crack length of a circular saw before it must be discarded?
2866 rpm
What is the maximum circular speed of a saw having a pitch diameter of 400 mm?
6.35mm
What is the minimum thickness for a boiler plates?
30 years
What is the age limit of a fire tube boiler?
1.5
Hydrostatic test pressure should not exceed __ times the maximum allowable working pressure
Low pressure Heating Boiler
A boiler operated at a pressure not exceeding 1.055 kg/cm2 gage steam water temperature not exceeding 121C.
5
What is the allowable factor of safety for boiler?
Water
Which of the following has refrigerant number 718
7.5
What is the recommended outdoor air requirement (liters per second per person) for a factor
EER
It is the ratio of energy removed at the evaporator to the electricity consumption
717
What is the refrigerant number of ammonia?
149C
If a water sprinkler is colored red, what is the maximum ceiling temperature it can withstand?
Class D
Fires in combustible metals such as magnesium, titanium,zirconium,sodium, and potassium.
converter
A device that receives information in one form of an instrument signal and transmits an output signal in another form.
transmitter
A device that sense a process variable through the medium of a sensor and has an output whose steady-state value varies only at a predetermined function of a process variable.
inclined
the water tubes in a simple vertical boiler are
all of the above
Lancashire boiler is a
two-fifth
The diameter of internal flue tubes of a Lancashire boiler is about ___ that of its shell.
Locomotive boiler
multi-tubular,horizontal,internally fired and mobile boiler
Babcock and Wilcox boiler
Which of the following is water tube boiler?
Fire tube boilers
the flames and hot gases pass through the tubes which are surrounded by water
Locomotive boiler
Which of the following boiler is best suited to meet the fluctuating demand of steam?
higher
Water tube boilers produce steam at a ___ pressure than that of fire tube boilers.
locomotive boiler
157 fire tubes and 24 superheated tubes
high
La-Mont boiler, is a _____ pressure water steam working on forced circulation.
safety valve
A device attached to the steam chest for preventing explosions due to excessive internal pressure of steam is called
Spring loaded safety valve
A safety valve mainly used with locomotive and marine boilers is
stop valve
A device used in a boiler to control the flow of steam from the boiler to the main to shut off the steam completely when required, is known as
fusible plug
A device used to put off fire in the furnace of the boiler when the level of water boiler falls to an unsafe limit
superheater
A device used to increase the temperature of saturated steam without raising its pressure
economiser
A device used to heat feed water by utilising the heat in the exhaust flue gases leaving through the chimney,
both superheater and economiser
Which of the following are boiler accessories?
increases
An economiser ___ the steam raising capacity of a boiler.
feed check valve
The pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as.
equivalent evaporation
amount of water evaporated
from and at 100C
into dry and saturated steam
evaporative capacity of a boiler
The amount of water evaporated in kg per kg of fuel burnt is called
boiler efficiency
the ratio of heat actually used in producing the steam to the heat liberated in the furnace is called
unburnt carbon
In a boiler, various heat losses take place. The biggest loss is due to
9.3
The protection area per sprinkler shall not exceed __m where the system is hydraulically designed.
Orange
What is the color of pipe handling gasoline